Device for preventing endwise movement and lateral separation of slats in fire-resisting curtains.



No. 759,447. PATENTBD MAY 10, 1904. w. R. KIYNNEAR. DEVICE FORPREVENTING ENDWISB MOVEMENT AND LATERAL SEPARATION OF S LATS IN FIRERBSISTING CURTAINS.

APPLICATION FILED SEPT. 9. 1901. RENEWED our. 23, 1903.

N0 MODEL.

wuwwkoi No. 75mm.

UNITED STATES Patented May 10, 1904.

PATENT OEEIcE.

WILLIAM R. KINNEAR, OF COLUMBUS, OHIO.

DEVICE FOR PREVENTING ENDWISE MOVEMENT AND LATERAL SEPARATION OF SLATSlN FIRE-RESISTING CURTAINS.

SPEGIFICATIQN forming part of Letters Patent N0. 759,447, dated May 10,1904.

7 Application filed September 9, 1901. Renewed October 28, 1903. SerialNo. 178.282. (No model.)

To all whom/ it may concern.-

Be it known that I, WILLIAM It. KINNEAR, a citizen of the United States,residing at O- lumbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Devices for PreventingEnd- Wise Movement and Lateral Separation of Slats in Fire-ResistingCurtains; and 1 do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates more particularly to such fire-resisting curtainsas are composed of metallic slats hinged together and are designed foruse as doors or in windows; and the purpose of the present invention isto combine a shoulder for preventing the lateral separation of theslats, substantially as shown and claimed in my patent of the UnitedStates No. 572,014, dated November 24, 1896, with a runner or combinedrunner and stop for preventing longitudinal movement of the slats uponeach other, substantially as described in my application for patentfiled June 18, 1901, Serial No. 65,031.

In my Patent No. 57 2,014 referred to the slats composing the curtainare shown to have tongues and grooves on each edge of the slat, suchtongues and grooves being on opposite sides of the general plane of theslat and shoulders to prevent the lateral separation of the slats afterthey are connected. With the present invention the bodies of the slatsmay be formed so that they can be separated laterally; but with theattachment to be hereinafter described they are made inseparablelaterally and, if desired, immovable longitudinally upon each other.

In the accompanying drawings, Figure 1 shows in end view and partiallyin section several slats with my combined end lock or runner andshoulder, the sectional portion of the View being taken on line a: m ofFig. 2 so far as the attachment is concerned. Fig. 2 is a side view ofthe attachment for the slats as shown in Fig. 1. Fig. 3 is a side Viewof an attachment adapted to be applied to one slat so as to lock theslats hinged to both edges thereof. Fig. 1 is an end and sectional Viewof the device shown in Fig. 3 as applied to a series of slats, thesectional portion of the view being taken on line ,1 1 so far asconcerns the attachment.

In the several views, 1 designates the body of the slats. These areshown, as before stated, to have tongues and grooves on opposite edges,the tongues and grooves being on opposite sides of the general plane ofthe slat.

In Figs. 1 and 2 the character 2 designates the shank of the attachment.This is shown to be provided with pliable teats 2, that can be passedthrough holes in the slat and bent down to fasten the attachment to theslat. The shank can of course be fastened to the slat by rivets or anyother suitable device. This shank is also shown to be extendedlaterally, as shown at 2, to form a shoulder or abutment 2 reaching overthe edge of an adjoined slat to prevent the lateral separation of theslats, but not preventing a hinge-like movement of the slats upon oneanother, as will be clearly understood from the views. "he attachment,as shown in Figs. 1 and 2, is also shown as provided with a rounded ortapering head 2, which is to lie beyond the end of the slat and engagethe channel in which the curtain runs. This head 2 can be and preferablyis provided with a laterally-extending portion or stop 9., projectingover the end of an adjoined slat at its junction with the slat to whichthe attachment is aflixed, so as to prevent longitudinal or endwisemovement of the slats upon each other when both edges of the curtain arefurnished with such stops. With the form of the invention shown in Figs.1 and 2 each slat will be provided with the attachment.

In Fig. 3 I have illustrated the attachment as having a double shank 2with a single head 2 The lateral projections 2 and 2 in this form aresubstantially alike; but they extend in opposite directions and affordabutments or shoulders for the slats hinged to 0pposite edges of oneslat. It is obvious that this form of the device need be applied toalternate slats only.

The device, as illustrated in Fig. 3, has the shanks 2 so located thatthey fit upon and can be attached to the opposite sides of the end ofthe slat, as further shown in Fig. 4.

Two devices like that shown in Fig. 2 can of course be attached to thesame end of one slat.

What I claim, and desire to secure by Letters Patent, is-

1. In a curtain composed of slats hinged together, a device comprising ashank portion having a shoulder to prevent lateral separation of theslats, and a head portion projecting beyond the end of the slat,substantially as described.

2. In a curtain composed of slats hinged together, a device comprising ashank portion having a shoulder to prevent lateral separation of theslats, and a lateral projection to prevent longitudinal movement of theslats upon one another, substantially as described.

3. In a curtain composed of slats hinged together, a device comprising ashank portion having a shoulder to prevent lateral separation of theslats, a head portion projecting beyond the end of the slat, and alateral projection to prevent longitudinal movement of the slats uponeach other, substantially as described.

4. In a curtain composed of slats hinged together, a device comprising ashank portion having a shoulder to prevent lateral separation of theslats, a head portion projectingbeyond the end of the slat, and alateral projection on said head portion to prevent longitudinal movementof the slats upon each other, substantially as described.

5. In a curtain composed of slats hinged together, a device comprisingtwo shank portions adapted to be attached to the end of a slat, saidshank portion having shoulders to prevent lateral separation of theslats hinged to opposite edges of the slat, and a common head portionprojecting beyond the end of the slat, substantially as described.

6. In a curtain composed of slats hinged together, a device comprisingtwo shank portions adapted to be attached to opposite sides of the endof a slat, said shank portions having shoulders to prevent lateralseparation of slats hinged to opposite edges of the slat, and a headportion common to the two shanks, substantially as described.

7. In a curtain composed of slats hinged together, a device comprisingtwo shank portions adapted to be attached to the opposite sides of theend of a slat, said shank portions having shoulders to prevent lateralseparation of slats hinged to opposite edges of the slat, and lateralprojections to prevent longitudinal or endwise movement of the slats,substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAI R. KINNEAR. Witnesses:

G. W. ALFRED, GEO. M. FINCKEL.

